CN104487664A - Method and position sensor assembly for determining a mutual position between a first object and a second object - Google Patents
Method and position sensor assembly for determining a mutual position between a first object and a second object Download PDFInfo
- Publication number
- CN104487664A CN104487664A CN201380034531.6A CN201380034531A CN104487664A CN 104487664 A CN104487664 A CN 104487664A CN 201380034531 A CN201380034531 A CN 201380034531A CN 104487664 A CN104487664 A CN 104487664A
- Authority
- CN
- China
- Prior art keywords
- change
- state
- power switch
- output signal
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L3/00—Lift-valve, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces; Parts or accessories thereof
- F01L3/24—Safety means or accessories, not provided for in preceding sub- groups of this group
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L9/00—Valve-gear or valve arrangements actuated non-mechanically
- F01L9/20—Valve-gear or valve arrangements actuated non-mechanically by electric means
- F01L9/21—Valve-gear or valve arrangements actuated non-mechanically by electric means actuated by solenoids
- F01L2009/2167—Sensing means
- F01L2009/2169—Position sensors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2201/00—Electronic control systems; Apparatus or methods therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L2820/00—Details on specific features characterising valve gear arrangements
- F01L2820/04—Sensors
- F01L2820/045—Valve lift
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention relates to a method and position sensor assembly for determining a mutual position between a first object and a second object. The position sensor assembly comprises a first body, a coil, a control unit, and a sensor circuit, said first body being reciprocally displaceable in the axial direction in relation to said coil. The sensor circuit comprises in turn a comparator connected to a first branch comprising said coil, a power switch, and a measuring resistance coupled in series with each other.
Description
Technical field
The present invention relates generally to the method for determining mutual alignment between the first object and the second object and position sensor assembly.Especially, the present invention relates to the method for determining the mutual alignment in internal-combustion engine between valve and valve seat and position sensor assembly.This position sensor assembly comprises the first main body, coil, control unit and sensor circuit, and described first main body can reciprocate in the axial direction about described coil.Sensor circuit comprises again the comparator being connected to the first branch road, and the first branch road comprises the described coil, power switch and the measuring resistor that are mutually connected in series.
At this, the present invention will be described about the determination of mutual alignment between valve and valve seat, but is not limited thereto; Such as, the present invention can be used for the mutual alignment between the different parts of the automatic clutch determining the medium power systems such as vehicle, wherein, highi degree of accuracy must be adopted to position high-speed object.
Background technique
Known for a long time, position sensor assembly is arranged as the position determining/follow the tracks of valve in cylinder of internal-combustion engine.Such as, but the early stage modification of position sensor assembly, about the object of superelevation movement, the valve in car combustion engine does not use enough fast and accurately.In the automotive industry, have extra demand, that is, the system of use should be sane and have very strong reliability with minimum cost.In recent years, system presents and comprises fixed coil/inductance, and fixed coil/inductance interacts with the movable body manufactured by conductive material, and described movable body is connected with valve, and plays motion with one.
Such as, see US Patent No. 7032549, it discloses position sensor assembly, comprise oscillator, the first main body, coil, control unit and sensor circuit, described first main body can reciprocate about described coil and in the axial direction at described coil outer.Sensor circuit comprises again the comparator being connected to the first branch road, and the first branch road comprises the described coil, oscillator and the measuring resistor that are mutually connected in series.When energized, it is configured to produce oscillating magnetic field, and this oscillating magnetic field induces eddy current again in movable body, and this can cause coil to be shorted.The change degree of coil short and overlapped between coil and main body change over ratio.Subsequently, comparator, based on the phase shift between the power supply voltage of oscillator and the voltage at measuring resistor two ends, determines the position of valve, and this phase shift increases along with the overlap between coil and main body and increases.
But described position sensor assembly is damaged by following shortcoming, namely comprise oscillator equally or the similar signal producer of ac voltage signal is provided, comparatively speaking, because oscillator continues, in operation, therefore constantly to need energy.In addition, described method comprises partial simulation signal, and it makes mutual alignment only can comparatively speaking, determine with lower time and positioning resolution.
Summary of the invention
The object of the invention is to eliminate the unfavorable and shortcoming of above-mentioned known location sensor cluster and object is to provide a kind of method of improvement and position sensor assembly for determining the mutual alignment between the first object and the second object.Main purpose of the present invention is to provide method and the position sensor assembly of the improvement of the type limited by incorporation way, and wherein, mutual alignment is done with highi degree of accuracy low energy consumption simultaneously really surely.
Another object of the present invention is to provide a kind of method, and making can become possibility by chosen distance between mutual alignment mutually isolated is determined.
Another object of the present invention is to provide a kind of by the position sensor assembly of fully digitalization, which show simple and cheap scheme, still can determine mutual alignment with highi degree of accuracy.
Another object of the present invention is to provide a kind of sane and non-contacting position sensor assembly.
Another object of the present invention is to provide a kind of comprising seldom and the position sensor assembly of lower price components.
According to the present invention, at least main purpose is by being limited by the mode introduced and having the method for the feature limited in independent claims and position sensor assembly realizes.The preferred embodiments of the present invention limit in the dependent claims further.
According to a first aspect of the invention, provide a kind of method of type limited by the mode introduced, the method comprises the steps:
-rising edge (upflank) of digital input signals pulse is sent to power switch from control unit, to produce power switch from being opened to closed change of state,
-in a control unit, detect the first change of state of the output signal from comparator, and
-determine mutual alignment between described first main body and described coil based on the delay between the rising edge of input signal pulse and the first change of state of output signal,
Or comprise the steps:
-rising edge of digital input signals pulse is sent to power switch from control unit, to produce power switch from being opened to closed change of state,
-in a control unit, detect the first change of state of the output signal from comparator,
-in a control unit, detect the second change of state of described output signal, and
-determine the mutual alignment between described first main body and described coil based on the delay between the first change of state outputed signal and the second change of state of output signal.
According to a second aspect of the invention, provide a kind of position sensor assembly, the sensor circuit of this position sensor assembly comprises:
-the first branch road, comprises described coil, measuring resistor and power switch, and this power switch has and is operably connected to described control unit for receiving the input end of independent digital input signals pulse, and
-comparator, it is connected to described first branch road to obtain the transient measurement voltage at measuring resistor two ends by first input end, and it comprises the second input end for obtaining instantaneous reference voltage further, and be operably connected to described control unit for exporting the output terminal of the independent change of state of digital output signal based on the correlation between described measuring voltage and described reference voltage.
Therefore, the present invention is based on following understanding, namely by the independent digital output signal pulse utilizing independent digital input signals pulse and therefore cause, the possibility determining the mutual alignment between the first object and the second object with long-time and position resolution and low energy consumption is obtained.
According to a preferred embodiment of the invention, described first change of state from the output signal of comparator is the rising edge of digital output signal pulse, and is wherein the trailing edge (downflank) of described digital output signal pulse from described second change of state of the output signal of comparator.
According to preferred embodiment, the sensor circuit of position sensor assembly comprises the feedback branch between output terminal and the second input end of comparator being connected to comparator.This means, when output state signal change from comparator, to be guaranteed due to change of state and the multiple fast state change that caused by electric noise etc. is eliminated, to facilitate the determination of mutual alignment.
Preferably, the first main body of position sensor assembly in coil portion be axially moveable.This just needs the coil by having the given inductance at given driving power place, realizes stronger inductance and changes and therefore realize better relation between signal and noise.
The further advantage of the present invention and feature obviously can be found out by the detailed description of other dependent claims and preferred embodiment below.
Accompanying drawing explanation
More complete understanding that is above-mentioned and other feature and advantage of the present invention will become clear, in accompanying drawing by the detailed description with reference to preferred embodiment below accompanying drawing:
Fig. 1 is the schematic sectional view of the valve be connected to according to position sensor assembly of the present invention, and valve is in closed state,
Fig. 2 is the schematic sectional view being in open mode valve in Fig. 1,
Fig. 3 is schematically showing according to the sensor circuit of the first embodiment,
Fig. 4 is schematically showing according to the sensor circuit of the second embodiment,
Fig. 5 is schematically showing according to the sensor circuit of the 3rd embodiment,
Fig. 6 is schematically showing according to the sensor circuit of the 4th embodiment,
Fig. 7 is schematically showing according to the sensor circuit of the 5th embodiment,
Fig. 8 is schematically showing according to the sensor circuit of the 6th embodiment.
Embodiment
First see figures.1.and.2, it illustrates the example comprising application of the present invention.The present invention relates generally to a kind of method for determining mutual alignment between the first object 1 and the second object 2 and position sensor assembly.In the application shown in Fig. 1 and 2, described first object is valve 1 and described second object is valve seat 2, and valve 1 and valve seat 2 are arranged in internal-combustion engine.Hereinafter, the present invention will be described about the determination of mutual alignment between valve 1 and valve seat 2, and is not limited thereto.Valve 1 can axially reciprocating between the closed position of Fig. 1 and the open position of Fig. 2.It should be noted that, valve 1 can be the suction valve in one of cylinder of internal combustion engine also can be outlet valve.
Valve 1 has valve rod 3 and valve head 4.Valve rod 3 extends through valve stem seal 5 and is guided by valve stem seal 5, and valve head 4 is arranged as and interacts for alternately allowing respectively and stoping passing through of gas with described valve seat 2.Valve stem seal 5 is arranged in the through hole of fixed component 6 of internal-combustion engine.Valve 1 moves preferably by air pressure and/or hydraulic actuator (not shown), and this actuator acts on the upper end 7 of the valve rod 3 of valve 1, valve 1 is moved to its open position from its closed position.In addition, internal-combustion engine preferably includes traditional, the valve spring 8 schematically shown, and it is arranged as takes back its closed position by valve 1 from its open position.Valve spring 8 abuts against the static part 6 of internal-combustion engine directly or indirectly in the effect of its lower end, and act at its upper end thus be resisted against on loader 9, or on valve spring positioning work piece, loader 9 or valve spring positioning work piece are connected to the valve rod 3 in the region of the upper end 7 of valve rod 3.
Position sensor assembly is arranged as the mutual alignment determined between valve 1 and valve seat 2, namely determine valve 1 where and the valve opening of valve seat 2 be opened to which kind of degree, or in other words, which kind of degree current valve rises to.
Now also with reference to Fig. 3, it illustrates schematically showing according to the sensor circuit of the first embodiment.Position sensor assembly comprises first main body 10 that can be connected to described valve 1, and coil maybe can be connected to the inductance 11 of described valve seat 2, and control unit (not shown), and sensor circuit, mark by 12 usually.Control unit is reading command and interpretative order the and subsequently instruction of needs is given to the unit of another unit.
First main body 10 is electric conductors, and preferably by nonmagnetic metal, such as aluminium is made.But it is also feasible that described first main body 10 is made up of magnetic metal such as compacted irons powder.It should be noted that, the first main body 10 is preferably connected to loader 9, or loader 9 is parts of described first main body 10.Described first main body 10 can reciprocate in the axial direction about described coil 11, and described first main body 10 preferably in the axial direction, removable in the inner radial of coil 11.In the illustrated embodiment, the first main body 10 is made up of pipeline section, and pipeline section has the external diameter of 25mm and arranges with one heart about valve rod 3, and valve spring 8 is arranged in the inner radial of described first main body 10.
In the illustrated embodiment, coil 11 is arranged in the seat 13 of sleeve 14, and sleeve 14 is connected to the fixed component 6 of internal-combustion engine.Sleeve 14, seat 13 and coil 11 are preferably about valve rod 3 arranged concentric.Coil 11 is preferably made of copper, and comprises, and such as, has 44 windings that internal diameter is 28mm.
Sensor circuit 12 comprises the first branch road and comparator 15.First branch road of sensor circuit 12 comprises described coil 11, power switch 16, and measuring resistor 18, power switch 16 has and is operably connected to described control unit for inputting the input end 17 of independent digital input signals pulse, and coil 11, power switch 16 and measuring resistor 18 are connected in series mutually.In addition, described first branch road is connected between voltage source 19 and ground, and voltage source 19 is preferably approximately+5V.It should be noted that, if the first valve and the second valve do not have overlapping valve-lift curve, described coil can be made up of two coils be connected in series, and the first coil in two coils belongs to the first valve, and the second coil belongs to the second valve.
The comparator 15 of sensor circuit 12 belongs to by first and is connected to described first branch road to obtain the transient measurement voltage at measuring resistor 18 two ends into end 20, and the second input end 21 comprised for obtaining instantaneous reference voltage and be operably connected to described control unit for exporting the output terminal 22 of the independent change of state of digital output signal.
Comparator 15 is arranged as the transient measurement voltage and the instantaneous reference voltage that obtain and compare and measure resistance 18 two ends, and is arranged as, and based on the correlation between measuring voltage and reference voltage, produces the change of state of digital output signal.When measuring voltage and reference voltage change size order mutually, namely change about when between them, which value is maximum order mutual, the change of state from the digital output signal of the output terminal 22 of comparator 15 is produced.
Position sensor assembly runs in the following manner.When in order to allow gas enter from the cylinder of internal-combustion engine or to discharge, when valve 1 is moved about valve seat 2, the first main body 10 is also moved about coil 11.When overlap between the first main body 10 and coil 11 increases, reduce in proportion for measuring voltage being changed to predetermined value institute elapsed time, this is shorted to result in various degree because coil 11 is affected by the first main body 10.According to preferred embodiment, the endurance of this change is approximately 5.5 microseconds at 0mm overlapping, is approximately 4.0 microseconds at 5mm overlapping, and is approximately 2.8 microseconds at 10mm overlapping.When the voltage at coil 11 two ends changes, the measuring voltage at measuring resistor 18 two ends also changes, and occurs from being opened to closed change of state due to power switch 16, and the voltage at coil 11 two ends changes.
In the scope of the general creative concept of the present invention, the endurance of described change can be determined according to two kinds of methods, and these two kinds of methods give the consistent contribution to prior art, but they are the realizations being unsuitable for limited identical basic conception completely the samely.
According to the first method, comprise the steps: the rising edge of the digital input signals pulse from control unit or positive side to be sent to power switch 16 to produce power switch 16 from being opened to closed change of state along (positive flank) according to the method for the present invention; In a control unit, the first change of state of the output signal from comparator 15 is detected; And determine the mutual alignment between described first main body 10 and described coil 11 based on the time delay between the rising edge of input signal pulse and the first change of state of output signal.The determination of described mutual alignment can occur in described control unit or occur in and be operably connected in another parts of this control unit.
According to the second method, the method according to this invention comprises the steps: the rising edge of the digital input signals pulse from control unit to be sent to power switch 16 to produce power switch 16 from being opened to closed change of state; In a control unit, the first change of state of the output signal from comparator 15 is detected; In a control unit, the second change of state of described output signal is detected; And determine the mutual alignment between described first main body 10 and described coil 11 based on the time delay between the first change of state outputed signal and the second change of state of output signal.The determination of described mutual alignment can occur in described control unit or be operably connected in another parts of this control unit.
Above-mentioned first method is based on such sensor circuit designs, wherein between the rising edge and the first change of state of output signal of input signal pulse, there is time delay.Above-mentioned second method is based on such sensor circuit designs on the contrary, and the rising edge of wherein input signal pulse occurs together with the first change of state of output signal.
Preferably, described first change of state from the output signal of comparator 15 is the rising edge of digital output signal pulse, and described second change of state from the output signal of comparator 15 is the trailing edge of described digital output signal pulse.
According to preferred embodiment, above-mentioned first method also comprises the steps, based on the detection of described first change of state of the output signal from comparator 15, the trailing edge of the described digital input signals pulse from control unit or minus side are sent to power switch 16 to produce power switch 16 from being closed into the change of state opened along (negative flank).According to preferred embodiment, above-mentioned second method also comprises the steps, based on the detection of described second change of state of the output signal from comparator 15, the trailing edge of the described digital input signals pulse from control unit is sent to power switch 16 to produce power switch 16 from being closed into the change of state opened.In other words, what the endurance of digital input signals pulse should be kept is short as far as possible so that energy-conservation.
Of the present invention one large advantage is that the mutual alignment between valve 1 and valve seat 2 is selected as really surely only when the reason of mutual alignment is determined in existence, that is, when valve 1 is just made when mobile.The movement of valve 1 is the movement based on I. C. engine crankshaft, and is in the movement between 1/2 refunding being approximately the complete rotation of bent axle in common internal-combustion engine.During the time cycle of valve 1 in movement, the position preferably making a valve 1 in each crankangle is determined, namely during the once rotation of bent axle, makes approximate 180 times.But, should be noted that the mutual alignment between valve 1 and valve seat 2 also can be determined when valve 1 does not move, such as, when valve 1 contacts with valve seat 2, wherein in order to correction position sensor cluster.
Hereinafter, many realizations of the sensor circuit 12 of position sensor assembly will be described, they have a common ground, sensor circuit 12 comprises the second branch road, this second branch road to be connected between voltage source 19 and ground and to comprise the first reference resistance 23 and the second reference resistance 24, it is connected in series mutually, and the second input end 21 of comparator 15 is connected to described second branch road at the some place between described first reference resistance 23 and described second reference resistance 24.In addition, the first input end 20 of comparator 15 is connected to described first branch road at the some place between described measuring resistor 18 and coil 11.
In order to work according to above-mentioned first method, sensor circuit 12 is passable, such as, realize according to Fig. 4, and Fig. 4 shows schematically showing according to the sensor circuit 12 of the second embodiment, or realize according to Fig. 5, Fig. 5 shows schematically showing according to the sensor circuit 12 of the 3rd embodiment.The common ground of these embodiments is that coil 11 is connected between the point of the first input end 20 of comparator 15 on voltage source 19 and the first branch road.It should be noted that, power switch 16 can unrestricted choice about the position of coil 11 and measuring resistor 18.In the 3rd embodiment shown in Fig. 5, except except shown in the second embodiment according to Fig. 4, sensor circuit 12 comprises feedback branch 25, or amplification branch road, be connected between the output terminal 22 of comparator 15 and the second input end 21 of comparator 15, to guarantee multiple fast state changes that the change of state of the output signal of comparator 15 causes for eliminating electric noise etc.
In order to work according to above-mentioned second method, sensor circuit 12 is passable, such as realize according to Fig. 6, Fig. 6 shows schematically showing according to the sensor circuit 12 of the 4th embodiment, or realize according to Fig. 7, Fig. 7 shows schematically showing according to the sensor circuit 12 of the 5th embodiment.The common ground of these embodiments is that measuring resistor 18 is connected between the point of the first input end 20 of comparator 15 on voltage source 19 and the first branch road.It should be noted that power switch 16 can unrestricted choice about the position of coil 11 and measuring resistor 18.In the fourth embodiment, as shown in Figure 6, except according to except shown in the 5th embodiment of Fig. 7, sensor circuit 12 comprises feedback branch 25, or amplifies branch road, is connected between the output terminal 22 of comparator 15 and the second input end 21 of comparator 15.
In fig. 8, can find schematically showing according to the sensor circuit 12 of the 6th embodiment, this sensor circuit is implemented to work according to above-mentioned second method.In this embodiment, sensor circuit comprises feedback branch 25, or amplification branch road, be connected between the output terminal 22 of comparator 15 and the first input end 20 of comparator 15, and measuring resistor 18 is connected between the point of the first input end 20 of comparator 15 on voltage source 19 and the first branch road.In addition, power switch 16 is arranged as with ground contiguous, and sensor circuit 12 comprises the synchronous resistance 26 that parallel connection is connected across power switch 16 two ends, each of the first branch road of sensor circuit 12 and the second branch road is connected in series with synchronous resistance 26 and power switch 16.
The amendment that the present invention is possible.The present invention is not limited only to shown in above-described embodiment and accompanying drawing, and these are only objects that is schematic and citing.Present patent application is intended to all reorganizations and the distortion that cover preferred embodiment described herein, and therefore the present invention is limited by the word of claims, and device can correspondingly with all feasible pattern amendments within the scope of the appended claims.
It should be noted that, about/for term such as on, under, top, all information of below etc., should explain/read with the device be orientated according to accompanying drawing, in this manner the accompanying drawing of orientation, its reference character can be read by rights.Therefore, such term only represents correlation in the illustrated embodiment, if device according to the present invention has another kind of structure/design, these correlations can change.
It should be noted that, even without the feature clearly proposed in a specific embodiment can with the integrate features of another embodiment, may time this also should think significantly.
Claims (11)
1. for being determined the method for mutual alignment between the first main body (10) and coil (11) by position sensor assembly, this position sensor assembly comprises described first main body (10), described coil (11), control unit, and sensor circuit (12), described first main body (10) can reciprocate about described coil (11) in the axial direction, sensor circuit (12) comprises the comparator (15) being connected to the first branch road, first branch road comprises the described coil (11) of series connection mutually, power switch (16) and measuring resistor (18), described comparator (15) is arranged as acquisition and compares and measures transient measurement voltage and the instantaneous reference voltage at resistance (18) two ends, and be arranged as, based on the correlation between measuring voltage and reference voltage, produce the change of state of digital output signal, the method comprises the steps:
-rising edge of digital input signals pulse is sent to power switch (16) to produce power switch (16) from being opened to closed change of state from control unit,
-in a control unit, detect the first change of state of the output signal from comparator (15), and
-determine the mutual alignment between described first main body (10) and described coil (11) based on the time delay between the rising edge of input signal pulse and the first change of state of output signal,
Or comprise the steps:
-rising edge of digital input signals pulse is sent to power switch (16) to produce power switch (16) from being opened to closed change of state from control unit,
-in a control unit, detect the first change of state of the output signal from comparator (15),
-in a control unit, detect the second change of state of described output signal, and
-determine the mutual alignment between described first main body (10) and described coil (11) based on the time delay between the first change of state outputed signal and the second change of state of output signal.
2. method according to claim 1, first change of state of the wherein said output signal from comparator (15) is the rising edge of digital output signal pulse, and the second change of state of the wherein said output signal from comparator (15) is the trailing edge of described digital output signal pulse.
3. method according to claim 1, wherein said method, except following steps:
-rising edge of digital input signals pulse is sent to power switch (16) to produce power switch (16) from being opened to closed change of state from control unit,
-in a control unit, detect the first change of state of the output signal from comparator (15), and
-determine described first main body 10 based on the time delay between the rising edge of input signal pulse and the first change of state of output signal) and described coil (11) between mutual alignment,
Also comprise the steps:
-based on the detection of described first change of state of the output signal from comparator (15), the trailing edge of described digital input signals pulse is sent to power switch (16) to produce power switch (16) from being closed into the change of state opened from control unit.
4., according to the method for claim 1 or 2, wherein the method is except following steps:
-rising edge of digital input signals pulse is sent to power switch (16) to produce power switch (16) from being opened to closed change of state from control unit,
-in a control unit, detect the first change of state of the output signal from comparator (15),
-in a control unit, detect the second change of state of described output signal, and
-determine the mutual alignment between described first main body (10) and described coil (11) based on the time delay between the first change of state outputed signal and the second change of state of output signal,
Also comprise the steps:
-based on the detection of described second change of state of the output signal from comparator (15), the trailing edge of described digital input signals pulse is sent to power switch (16) to produce power switch (16) from being closed into the change of state opened from control unit.
5., for determining the position sensor assembly of mutual alignment between the first object (1) and the second object (2), this position sensor assembly comprises:
First main body (10) of described first object (1) can be connected to, the coil (11) of described second object (2) can be connected to, control unit, and sensor circuit (12), described first main body (10) can reciprocate about described coil (11) in the axial direction
Sensor circuit (12) comprising:
First branch road, comprise described coil (11), power switch (16), and measuring resistor (18), this power switch (16) has and is operably connected to described control unit for receiving the input end of independent digital input signals pulse, coil (11), power switch (16) and measuring resistor (18) are connected in series mutually
Comparator (15), it is connected to described first branch road to obtain the transient measurement voltage at measuring resistor (18) two ends by first input end (20), and it comprises the second input end (21) for obtaining instantaneous reference voltage further, and be operably connected to described control unit for exporting the output terminal (22) of the independent change of state of digital output signal based on the correlation between described measuring voltage and described reference voltage.
6. position sensor assembly according to claim 5, wherein sensor circuit (12) comprises the feedback branch (25) between output terminal (22) and second input end (21) of comparator (15) being connected to comparator (15).
7. according to the position sensor assembly of claim 5 or 6, wherein the first branch road of sensor circuit (12) is connected between voltage source (19) and ground, and wherein sensor circuit (12) comprises the second branch road, it is connected between voltage source (19) and ground and it comprises the first reference resistance (23) and the second reference resistance (24), two reference resistances are connected in series mutually, second input end (21) of comparator (15) is connected to described second branch road being positioned at the some place between described first reference resistance (23) and described second reference resistance (24).
8. position sensor assembly according to claim 7, wherein power switch (16) is arranged as neighboringly.
9. position sensor assembly according to claim 8, wherein sensor circuit (12) comprises the synchronous resistance (26) that parallel connection is connected across power switch (16) two ends, and each of the first branch road of sensor circuit (12) and the second branch road is connected in series with synchronous resistance (26) and power switch (16).
10., according to the position sensor assembly of claim 5-9 any one, wherein said first main body (10) is electric conductor, is preferably manufactured from aluminium.
11. according to the position sensor assembly of claim 5-10 any one, and wherein said first main body (10) is removable in the axial direction in coil (11) inside.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE1250721-6 | 2012-06-28 | ||
| SE1250721A SE536617C2 (en) | 2012-06-28 | 2012-06-28 | Method and positioning sensor composition for determining a mutual position between a first object and another object |
| PCT/SE2013/050765 WO2014003650A1 (en) | 2012-06-28 | 2013-06-25 | Method and position sensor assembly for determining a mutual position between a first object and a second object |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104487664A true CN104487664A (en) | 2015-04-01 |
| CN104487664B CN104487664B (en) | 2017-10-17 |
Family
ID=49783626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380034531.6A Active CN104487664B (en) | 2012-06-28 | 2013-06-25 | Method and position sensor assembly for determining mutual alignment between the first object and the second object |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US9778014B2 (en) |
| EP (1) | EP2867483A4 (en) |
| JP (1) | JP6159399B2 (en) |
| KR (1) | KR20150036250A (en) |
| CN (1) | CN104487664B (en) |
| BR (1) | BR112014032817A2 (en) |
| RU (1) | RU2630631C2 (en) |
| SE (1) | SE536617C2 (en) |
| WO (1) | WO2014003650A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106062325A (en) * | 2013-12-20 | 2016-10-26 | 弗瑞瓦勒夫股份公司 | Method and position sensor arrangement for determining the mutual location of a first object and a second object |
| CN107567535A (en) * | 2015-04-16 | 2018-01-09 | 弗瑞瓦勒夫股份公司 | Actuator for the axial movement of object |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102015005123A1 (en) * | 2015-04-22 | 2016-10-27 | Gpi Gesellschaft Für Prüfstanduntersuchungen Und Ingenieurdienstleistungen Mbh | Cylinder head valve unit |
| US10278288B2 (en) * | 2016-04-22 | 2019-04-30 | KSR IP Holdings, LLC | Inductive sensor for shock absorber |
| SG11201901390TA (en) | 2016-08-30 | 2019-03-28 | Tetraphase Pharmaceuticals Inc | Tetracycline compounds and methods of treatment |
| SE2050229A1 (en) * | 2020-03-02 | 2021-08-17 | Freevalve Ab | Internal combustion engine comprising a decentralized valve-control arrangement and method therefore |
| JP6952851B1 (en) | 2020-09-07 | 2021-10-27 | 日本たばこ産業株式会社 | Controller for aspirator |
| JP2022064593A (en) * | 2020-10-14 | 2022-04-26 | キヤノン株式会社 | Wireless transmission system, control method, and program |
| US11806851B2 (en) * | 2021-10-08 | 2023-11-07 | Thomas Strazza | Multiconfigurational support tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005351218A (en) * | 2004-06-11 | 2005-12-22 | Toyota Motor Corp | Electromagnetically driven valve |
| US7032549B1 (en) * | 2004-10-19 | 2006-04-25 | General Motors Corporation | Valve lift sensor |
| US7121300B2 (en) * | 2002-11-06 | 2006-10-17 | Bayerische Motoren Werke Aktiengesellschaft | Device for measuring the lift of poppet valves |
| CN1896491A (en) * | 2005-07-15 | 2007-01-17 | 丰田自动车株式会社 | Control apparatus for internal combustion engine |
| CN101943291A (en) * | 2005-11-22 | 2011-01-12 | 诺格伦公司 | The valve of belt sensor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19711595C2 (en) * | 1997-03-20 | 2003-06-12 | Draegerwerk Ag | Method for controlling a valve in a ventilator |
| US6666784B1 (en) * | 1999-10-06 | 2003-12-23 | Ntn Corporation | Piston rod piston detector, autotensioner and belt tension adjuster |
| US20090049463A1 (en) * | 2006-02-23 | 2009-02-19 | Ryuji Ueda | Motor driving device, and motor driving method |
| WO2008057578A1 (en) * | 2006-11-08 | 2008-05-15 | T2 Biosystems, Inc. | Nmr systems for in vivo detection of analytes |
| US7536984B2 (en) * | 2007-04-16 | 2009-05-26 | Lgd Technology, Llc | Variable valve actuator with a pneumatic booster |
| DE102007025619B4 (en) | 2007-06-01 | 2012-11-15 | Robert Bosch Gmbh | Method and device for controlling a hydraulic actuator |
-
2012
- 2012-06-28 SE SE1250721A patent/SE536617C2/en unknown
-
2013
- 2013-06-25 JP JP2015520120A patent/JP6159399B2/en active Active
- 2013-06-25 US US14/408,622 patent/US9778014B2/en active Active
- 2013-06-25 CN CN201380034531.6A patent/CN104487664B/en active Active
- 2013-06-25 RU RU2015102599A patent/RU2630631C2/en active
- 2013-06-25 EP EP13809643.3A patent/EP2867483A4/en not_active Withdrawn
- 2013-06-25 WO PCT/SE2013/050765 patent/WO2014003650A1/en active Application Filing
- 2013-06-25 BR BR112014032817A patent/BR112014032817A2/en not_active Application Discontinuation
- 2013-06-25 KR KR20157002370A patent/KR20150036250A/en active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7121300B2 (en) * | 2002-11-06 | 2006-10-17 | Bayerische Motoren Werke Aktiengesellschaft | Device for measuring the lift of poppet valves |
| JP2005351218A (en) * | 2004-06-11 | 2005-12-22 | Toyota Motor Corp | Electromagnetically driven valve |
| US7032549B1 (en) * | 2004-10-19 | 2006-04-25 | General Motors Corporation | Valve lift sensor |
| CN1896491A (en) * | 2005-07-15 | 2007-01-17 | 丰田自动车株式会社 | Control apparatus for internal combustion engine |
| CN101943291A (en) * | 2005-11-22 | 2011-01-12 | 诺格伦公司 | The valve of belt sensor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106062325A (en) * | 2013-12-20 | 2016-10-26 | 弗瑞瓦勒夫股份公司 | Method and position sensor arrangement for determining the mutual location of a first object and a second object |
| CN107567535A (en) * | 2015-04-16 | 2018-01-09 | 弗瑞瓦勒夫股份公司 | Actuator for the axial movement of object |
| CN107567535B (en) * | 2015-04-16 | 2020-01-10 | 弗瑞瓦勒夫股份公司 | Actuator for axial movement of an object |
Also Published As
| Publication number | Publication date |
|---|---|
| US9778014B2 (en) | 2017-10-03 |
| BR112014032817A2 (en) | 2017-06-27 |
| CN104487664B (en) | 2017-10-17 |
| WO2014003650A1 (en) | 2014-01-03 |
| EP2867483A1 (en) | 2015-05-06 |
| JP6159399B2 (en) | 2017-07-05 |
| RU2015102599A (en) | 2016-08-20 |
| RU2630631C2 (en) | 2017-09-11 |
| SE536617C2 (en) | 2014-04-01 |
| US20150247718A1 (en) | 2015-09-03 |
| SE1250721A1 (en) | 2013-12-29 |
| KR20150036250A (en) | 2015-04-07 |
| EP2867483A4 (en) | 2016-05-11 |
| JP2015522159A (en) | 2015-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104487664A (en) | Method and position sensor assembly for determining a mutual position between a first object and a second object | |
| US7032549B1 (en) | Valve lift sensor | |
| US7454299B2 (en) | Device and method for detecting an end of a movement of a valve piston in a valve | |
| CN101027537B (en) | Device and method for detecting the position and the velocity of a test object | |
| US20080074104A1 (en) | Displaceable component including a position-defining element made of a magnetized elastomer | |
| KR20140097297A (en) | Inductive displacement sensor | |
| CN104364478B (en) | For running the method and corresponding valve actuating mechanism of the valve actuating mechanism of internal combustion engine | |
| GB2515359A (en) | Solenoid-actuator-armature end-of-motion detection | |
| US20080135022A1 (en) | Control Circuit for an Actuator | |
| CN202793311U (en) | Camshaft position sensor | |
| CN201381853Y (en) | Contactless electromagnetic hole diameter sensor | |
| US20060017432A1 (en) | Displacement sensing system and method | |
| CN104296785B (en) | Crankshaft position sensor for automobile | |
| JP4010734B2 (en) | Belt drive | |
| CN103064044B (en) | Hall displacement sensor magnetic steel detection device | |
| EP1486670A2 (en) | Linear compressor and control method thereof | |
| CN105804910B (en) | A kind of highly sensitive fuel injection beginning of diesel engine sensor | |
| US20160320209A1 (en) | Method and position sensor arrangement for determining the mutual location of a first object and a second object | |
| ATE299231T1 (en) | SENSOR ARRANGEMENT FOR DETECTING THE MOVEMENT OF AN ARCHOR WITH SUPPRESSION OF INTERFERENCE VOLTAGE | |
| AU5520000A (en) | Distance measuring device | |
| CN210090583U (en) | Detection circuit for detecting fuel injector driving module | |
| CN208564665U (en) | A kind of cam assembly and position-measurement device of integrated signal disk | |
| JP2007501385A (en) | Measuring apparatus and method for determining the position of a conductive test object | |
| CN206503795U (en) | A kind of fuel quantity control valve of built-in electromagnetic force adjusting device | |
| CN106662466A (en) | Sensor system and piston-cylinder assembly |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |